Beter Nail Files Double Sided Emery Board 17.8 cm are made of top quality adhesive tape and emery board material, trimming and shaping your nails for a desired shape or length without damaging the nail. Designed with the round ends and double sides, providing you a rather soft and comfortable nail filing experience.is suitable for extracting nail gel from your extended or counterfeit nails. Used to make desired shape or length fast to trim or form the nail.beter is the best nail cleaner ever.